Dunsun support for Operating System on their hardware is practically non-existent so regardless of this you probably want to consider buying some other hardware which is officially supported by Home Assistant Operating System. See discussion here about DSGW-210 and other Dunsun hardware:
Technically that DSGW-210 hardware could support Home Assistant Operating System but niether Dunsun or anyone in the community have stepped up to do a proper port of Home Assistant Operating System to it, (which other companies/people previously done for similar hardware).
So it would not be impossible to follow Sonoff/Itead’s example with an official port. If anyone have any contacts at the Dusun company then maybe suggest to them to at the very least try to follow Sonoff/ITead/Coolkit/eWeLink’s development approach for Sonoff iHost for the better option of porting Home Assistant Operating System in a standardized way to this hardware and publish all of the projects/code/libraries publicly on GitHub to better try to follow the spirit of open-source software and community etos: